Australian General Motors is about to close the doors on the Holden brand, so their giving the final version of the beloved Commodore a proper sendoff. The GTSR W1 gets one heck of a performance upgrade in the form of a 6.2-liter supercharged LS9 V8 from GM's very own Corvette ZR1. This powerhouse can easily crank out 635 hp and 601 lb-ft. of torque. The GTSR W1 should launch off the starting line with a 0-60 of just 4.2 seconds. Take a look at the all new Commodore before they're gone for good!